Signal-repeater



Q (No Model.)

T. H. PATBNALL.

SIGNAL REPEATEE,

Patented D88. 20, 1892. 8,

@YQH

NlTED STATES PATENT Orricn.

THOMAS PATENALL, OF RAHVVAY, NEW JERSEY.

SIG NAL-RELPEATER.

SPECIFICATION forming part of Letters Patent No. 488,285, dated December20, 1892.

Application filed January 2,1892. $erlal No. 416,776- (NomodeL) To allwhom it may concern:

Be it known that 1, THOMAS H. PATENALL, of Rahway, in the county ofUnion and State of New Jersey,have invented a new and useful Improvementin Signal Repeaters, of which the following is a specification.

My invention relates to an improvement in signal repeating devices foruse in connection with signal operating mechanism to indicate to theoperator the position of the signal.

My invention contemplates more particularly the introductionof anaudible signal in connection with the visual repeating signal now in useto warn the operator in case the signal fails to complete its strokefrom danger to safety or the reverse.

A practical embodiment of my invention is represented in theaccompanying drawings in which,

Figure 1 is a front view of the casing which incloses the repeatingdevices, the visual repeater being shown through a glass window oropening. Fig. 2 is avertical section taken through the casing in theplane of the line a: a: Fig. 3 and showing the electric connections withthe audible signal and with the contact pieces which receive the circuitcloser controlled by the signal operating mechanism and,-Fig. 3 is aview in vertical section from front to rear through line y 1 of Fig. 2.

A represents a suitable casing in which the electro magnet and repeateroperating mechanism are located. The casing is here shown rectangular inform and is provided with a window a in its front through which the repeating signal arm B may be seen by the operator.

lVithin the casing two electro magnets O and O are supported having aspace between their adjacent ends for the vibratory move ment of acommon armature c. The armature c is fixed to or formed integral with aswinging arm '1) here shown as depending from its pivotalsupport at theupper portion of the casing and provided at its free end with a pin 61having a loose engagement with the end of a counterbalance arm E fixedto rotate with the spindle b. The spindle b is mounted so as to rotatefreely and carries on its front end the signal arm B. The depend ing armD vibrates between a pair of yielding contact pieces F one of which isprovided F apart sufficiently to disengage the stud f 65 from theopposite piece, and hence break the electric circuit through the piecesF. The swing of the arm D is intended to be sufficient to move therepeater arm B from horizontal to down and vice versa. An electric bellG is in circuit with the contact pieces F, a battery H and a switch I.The magnet G is in circuit with the battery H and a pair of contactpieces K with which the circuit closer L under the control of the signaloperating mechanism is adapted to contact when the signal is sethorizontal or at danger and the magnet G is in circuit with the batteryH and a pair of contact pieces k with which the said circuit closer L isadapted to contact when the signal is down or at safety.

The operation is as follows: When the circuit closer L is raised intocontact with the pieces K in the act of setting the signal to danger, itwill close circuit through magnet O, energize the said magnet and drawthe arm D into the position shown in Fig. 2, and the repeater arm B willassume the horizontal position shown in Fig. 1. When the signal isoperated in the opposite direction the circuit closer Lwill engage thepieces break ing circuit through magnet G and closing circuit throughthe magnet 0, thereby drawing the arm D over into contact with magnet Cand turning the signal arm B into a depending position. The movement ofthe arm D between the magnets will be announced by an alarm from thebell, caused by the momentary closing of the circuit through the contactpieces F, and, if the signal fail of being completely thrown, the arm Dwill hang between the two magnets, and the circuit through the bell willcontinue complete and the bell continue to ring. In case of any failureof the signal to operate for any great length of time the sound of thebell may be caused to cease by simply turning the switch I.

What I claim is: The signal repeating device comprising the separatedmagnets each in independent circuit, the swinging armature common to thetwo magnets, the visible signal supported to swing, an arm connectedwith the swinging visible signal and having a loose engagement with thefree end of the swinging armature, the yielding contact pieces having anormal tendency to rest in electrical contact, and the audible signal incircuit with the yielding THOMAS H. PATENALL. Witnesses:

FREDK. HAYNES, GEORGE BARRY.

